Tizen is not just another wanna-be mobile platform, since its main backer is the world’s number one smartphone maker, Samsung. But the platform has taken its first major hit, as plans for its launch in Japan have been postponed indefinitely.

Facebook Home isn’t a mobile operating system. But normal users who buy or download the Home experience won’t know or care. They’ll suddenly have Facebook phones that look, feel, and behave totally different from Android phones.

Several images of the latest unreleased version of Android—code named Ice Cream Sandwich—leaked online Thursday evening, giving smartphone fans their first glimpse at the operating system’s new style and features.

Location-based check-in service Foursquare saw a massive amount of success, both globally and in the United States, because it focused on multiple mobile platforms rather than a single one like Apple’s iPhone operating system or Google’s Android, according to Foursquare executive Holger Luedorf.